Paper-folding machine



(No Model.) 2 ShetsSheet 1.

O. CHAMBERS, Jr.

PAPER FOLDING MACHINE.

No. 386,296. Patented J111y17, 1888.

WITNESSES:

n. PETERS. PhMo-Lilhonphnr, Wnniman, 04 c 2 Sheets-Sheet 2.

Patented July 17 1888.

d m T N z E /M W/ V. W 1 m ll .1 h R J. Wm I k 0 0 a I 1 W 7 rmw .|1| TQ 9 M 2 7 m. o N.

(No Model.)

0. CHAMBERS, Jr. PAPER FOLDING MACHINE.

WW- M W M Q M MWML WITNESSES:

Nrra ATENT FFICEO PAPER=FOLDING MACHINE.

SPECIFICATION forming part of Letters Patent No. 386,296, dated July 17,1888.

Application filed March 31, 1883. Serial No. 90.17.).

To all whom it may concern:

Be it known that I, GYRUs CHAMBERS, J12, a citizen of the United States,residing at the city and county of Philadelphia, and State ofPennsylvania, have invented certain new and useful Improvements inPaper-Folding Machines, of which the following is a full, clear, andexact description, reference being had to the accompanying drawings.

Figure 1, Sheet 1, is a plan of my invention with the feed-tables andconveying-tapes removed. Fig. 2 is a transverse section on the line a b,Fig. l, with the feed-tables in place. Fig. 3, Sheet 2, isaplan View,enlarged, of part of the main feed-rolls, droproller, and gearing. Fig.4. is a section on theline 0d, Fig. 3.

The principal object of this invention is to provide a mechanism forfeeding in and inserting a supplement-sheet within the main sheet infast rotary newspaper-folders.

As the construction and operation of ordinary foldingnnachines,especially those known as the Chambers folders. are familiar to thoseacquainted with the art, I shall not deem it necessary to furtherdescribe the same than shall be requisite for a clearcomprehension of mypresent improvements.

Referring to the accompanying drawings, in which like letters ofreference designate corresponding parts, A is the common inclinedfeed-table, upon which the main sheets are banked preparatory to beingfed in between the first pair of rolls or drums, B B, by the aid of thedrop-roller O, and are folded and carried on in the usual manner underguidebars and over tapes, as shown in dotted lines, Fig. 2,whichoperate, in connection with the guides, to carry the sheet against astop, D, located above and at the farthest ends of the second pair offolding-rolls, B. The supplementsheets to be folded in with thesecond orfinal fold of the main sheets are fed in from the feed-table F at therear of the machine, upon which they are banked, to the drum G, and whenthe d rop-roller H descends the sheet is carried between it (thedrop-roller) and the drum, thence upon tapes (indicated by broken linesin Fig. 2) and under guide-bars g to a turn-over roll, I, and carriedbetween the lat ter and a friction-roller, J, over roll I, between itand curved extension 9' of the guide-bars,

(No nlodeLl until it is brought by the tapes,which run over the tworolls 0 and I, against the stop D. At this instant the supplementsheetis in position to be folded in with the j ust-arrived once-folded mainsheet beneath it, when the folding-blade L descends. It is of courseunderstood that the feed-roller H is timed to drop to take eachsupplement-sheet, so that the latter shall be brought into properpositionthat is, over the second pair of rolls, B si1nultancously, orthereabont, with the main sheet.

The drop-rollers are driven positively by means of the gearing, asfollows: Referring specially to the enlarged Figs. 3 and 4, Sheet 2, Irepresent the drop-roller and its connections at the front or main endof the machine. Those at the rear or supplement end are substantiallythe same and operate in the same manner. The shaft a, which carries thedroproller 0, is journaled at the extremity of an arm, N, which swingsupon the shaft of the upper roll, B. Said arm is caused to vibrate, andthus at proper intervals to depress the feed-roller by means of a cam,b, and connec 7 tion, in, Fig. 2, in the ordinary manner. To the journalof the feed-roller is secured a piniongear, 0, whose teeth mesh intothose of an idler-pinion, P, journaled in an upward extension of the armN. The teeth of this idler in turn engage with those of a gear, Q, 011the shaft of the upper roll, B, which engage with the teeth of the gearIt on the shaft of the main drum B. It will be obvious, now, that therotation of gear Q turns the idler, which imparts its motion to the gear0 of the dr0proller, and thus the latter is kept in continual motion ina direction opposite to that of the main drum.

The several gears are so proportioned, as shown, that the surface speedsof the droproller and of the lower roll or main drum will be the same.

WVhen the arm N is caused to vibrate or rotate downward and thedrop-roller descends, the teeth of its gear 0 mesh in with those of thegear R of the drum. This construction, however, is not essential, butmerely eonvenient.

The idler-gear may as well be made with a wide face adapted to receivethe teeth of the gear Q. at one end and the gear of the dropill rollerat the other, in which case the gear of the lower drum would be locatedso as to be out of the way of the gear of the drop-roller.

It will be seen that by the foregoingrde- '5 scribed cornbinatio n'audarrangement of mechanism additional or supplement sheets may bereadilyandsimply foldedin in proper position with the final fold of themain sheets, and also that the drop-rollers are kept in continuous 10rotation and positively driven in the right di- 20 tapes, the turn-overroll, the folding-blade, and

the folding rolls, also substantially as described, for feeding in thesupplemental 0r inside sheets at the rear of the machine and conveyingand turning them over and folding them with the folded main sheet, asset forth.

2. In a folding-machine, the comb nation of mechanism, substantially asdescribed,forfolding the main sheet and conveying the same toward therear of the machine, a stop for arresting the folded sheet, the rolls Band knife L, arranged at right angles to the first pair offolding-rolls, the roll G and means, substantially as described, forfeeding in the supplemental sheet, the turn-over roll I, and means, alsosubstantially as described, for conveying the supplemental sheet intoposition to be folded in with the main sheet, as set forth.

In testimony whereof I have hereunto affixed my signature this 14th dayof February, A. D. 1883.

CYRUS CHAMBERS, JR. \Vitnesses:

CURTIS PAXSON, NATE. E. J ANNEY.

